com.microcrowd.loader.java3d.max3ds.chunks
Class KeyFramerInfoChunk

java.lang.Object
  com.microcrowd.loader.java3d.max3ds.chunks.Chunk
      com.microcrowd.loader.java3d.max3ds.chunks.KeyFramerInfoChunk

public class KeyFramerInfoChunk
extends Chunk

A KeyFramerInfoChunk stores information about things that happen to meshes: Position information, rotation information, scale information, pivot information and frame information. Together with the frames chunk thes are used display animation behaviors.

Author:

Josh DeFord

Constructor Summary

KeyFramerInfoChunk()

Method Summary

void	initialize(ChunkChopper chopper) Retrieves the named object for the current key framer inserts the rotation, position and pivot transformations for frame 0 and assigns the coordinate system to it.

Methods inherited from class com.microcrowd.loader.java3d.max3ds.chunks.Chunk

addSubChunk, getDescription, getName, getSubChunk, loadData, setDescription, setName, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

KeyFramerInfoChunk

public KeyFramerInfoChunk()

Method Detail

initialize

public void initialize(ChunkChopper chopper)

Retrieves the named object for the current key framer inserts the rotation, position and pivot transformations for frame 0 and assigns the coordinate system to it. The inverse of the local coordinate system converts from 3ds semi-absolute coordinates (what is in the file) to local coordinates. Then these local coordinates are converted with matrix that will instantiate them to absolute coordinates: Xabs = sx a1 (Xl-Px) + sy a2 (Yl-Py) + sz a3 (Zl-Pz) + Tx Yabs = sx b1 (Xl-Px) + sy b2 (Yl-Py) + sz b3 (Zl-Pz) + Ty Zabs = sx c1 (Xl-Px) + sy c2 (Yl-Py) + sz c3 (Zl-Pz) + Tz Where: (Xabs,Yabs,Zabs) = absolute coordinate (Px,Py,Pz) = mesh pivot (constant) (X1,Y1,Z1) = local coordinates

Overrides:

initialize in class Chunk

Parameters:

chopper - the ChunkChopper containing the current state of the parser.